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(No Model.) B Sheets-Sheet 1. J. I.v A. MILLERIGK.

, GATE. No. 447,013. Patented Feb. 24,1891.

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(No Model.) s sheets-sheet z. J. F. A. M ILLERCK.

GATE.

Patented Feb. 24,1891.

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(No Model.)

J. F. A. MILLERIGK.

GATE.

Patented Feb. 24,1891

ATENT FFME .lOHN F. A. MILLERICII, OF SAN FRANCISCO, CALIFORNIA.

GATE.

SPECIFICATION forming part of Letters Patent No. 447,013, datedFebruary24, 1,891. Application filed .l'uly l0, 1890. Serial No.358,342. (No model.)

T0 all whom, it may concern:`

Be it known that I, JOHN F. A. MILLnRroK, a citizen of the UnitedStates, residing in the city and county of San Francisco, State ofCalifornia, have invented an Improvement in Gates; and I hereby declarethe following to be a full, clear, and exact description of the same.

My invention relates to that class of gates adapted to be opened andclosed by the wheels of an approaching and receding vehicle running downcranks in the roadway; and it consists in the novel constructions andcombinations hereinafter fully described, and specifically pointed outin the claims.

The object of my invention is to provide an effective andreadily-operating gate of this class.

Referring to the accompanying` drawings for a more complete explanationof my invention, Figure 1 is a view of my gate. Fig. 2 shows theoperating parts when the gate is closed, the dotted lines showing theposition when a vehicle is advancing from the left. Fig. 3 shows themovement completed and the gate swung open. Fig. 4. is a plan view ofthe left side of Fig. 3. Fig. 5 is a front View of the gate. Fig. G is aface view of the gate-catch.

A is the roadway, on one side of which is the gate-post B, to which thegate is hinged, and on the other side is thc gate-post B', which carriesthe catch of the gate. A top bar B2 extends between and is supported bythe two posts.

C is the gate, having at one end a standard c, the upper end of which ispivotally mounted and vertically movable in the top bar B2,and the lowerend is hollow or tubular and fits freely over a fixed standard c',rising from the roadway or a suitable beam therein, and having at itsbase a cushion or buffer c2, upon which the lower end of thegate-standard normally rests. This manner of hanging the gate providesfor its vertical movement bodily, its end standard c passing up throughthe top bar B2, and the lower end of said standard moving up and down onthe fixed standard c', the fall of the gate being broken by the cushionor buffer c2. This vertical movement of the gate frees its latch7hereinafter described, from the catch on the post B, so that the gatemay swing open. Y

Extending longitudinally in the side of the roadway past the gate is thegate-operating bar D. i

Secured to the lower end of the gate-stand ard c are arms d, two innumber, and extending at right angles to each other. The outer ends ofthese arms are slotted at d and are 6o adapted to fit freely over andplay past studs or pins cl2 on the bar D. Suitable braces d3 areconnected with the arms and with the loottom rail of the gate. N ow itwill be seen that if the bar D be raised the gate itself Will be raisedbodily; but the bar D is adapted not only to be lifted but to be movedwhile lifting longitudinally as well; or,in other words, the whole baris made to describe a half-circle in a vertical plane. first to raisethe gate sufficiently to free its latch from the catcl1,and then bytheengagef ment of one of the studs or pins with one of the arms cl to turnsaid gate to an open or closed position, according to the direction inwhich the bar is moved, the other of said arms el meanwhile playing freefrom the other stud or pin of the bar.

The mechanism for operating the bar D is as follows: One device islocated onone side 8o toggle-lever. It consists of two bars or mem- 9obers. The lower member F is freely journaled at its inner end on shaftE, and has a slotted ear fat its outer end, between the parts of whichis fitted the ear gofthe upper member G, which is pivoted at its otherend at g" 95 yto the bar D. The ears g and fof the members G and F arepivoted together by a pin f. Extending from the side 4of the end of barD is a contact-pin d4, which projects outi wardly and lies directly overthe ears of the roc members F and G. This construction results in thefollowing movement: If the lower mem- The effect of this is 7o Upon theouter end of ber F be turned about its pivotal inner end with the shaftE for an axis, so that its outer end is swung upwardly, the ear of saidouter end, bearing up under the contact-pin d4, will raise the bar D,and the upper member G, being connected with said bar, will carry thebar over through the arc of its movement, remaining parallel with theside of said bar. Vhen the member F reaches a vertical position, it isat right angles to the bar and to the member G, and further movementpast the vertical carries the two members into substantial alignment.New', on the backward movement the two members pass from alignmentthrough a position at right angles to each other and down to their firstposition, where they lie parallel and on top of each other. Y

Securely fastened to the shaft E is a collar H, from which projects acrank-arm h. In one side of this collar is made agroove, leavingterminal shoulders 7L.

Pivoted upon the shaft E is a catch-arm I, which is adapted to have afree movement between the terminal shoulders 7L of the collar I-I, andto be controlled by them.

Mounted in the lower portion of the lower member F and adapted to slidelongitudinally therein is a locking-bar J, the outer end of which isadapted to be projected into and to engage a socket K in the roadway.The rear or stem end of this locking-bar has a surrounding springj, thetendency of which is to keep said bar normally projected to itsengagement with the socket K. y

Pivoted on one side of the member F is a bell-crank lever L, one arm ofwhich is slot-- ted over a pin 7" of the locking-bar, and the other armis in the path of the projecting catch-arm I. The head of thelocking-bar J is shouldered at j?, whereby its backward movement islimited by coming in contact with the body of the member F, in which itis seated. Now upon rocking shaft E in a di rection toward the gate theshoulder 'It' of collar H on said shaft picks up the catch-arm I, andthe end of this arm, coming in contact with the bell-crank lever L,swings saidlever so that its other arm withdraws the lock-bar .I fromits engagement with the socket K. This retraction of the locking-bar isonly suficient to relieve it from its socket, and then its shoulderj2coming in contact with the body of member F said lock-bar is limited,and further movement of the shaft E through the contact of the catch-armI and bell-crank lever L results in connecting the member F with theshaft E, so that the movement of the shaft imparts movement to themember F, and consequently the bar D is raised and swung over throughits half-circle, as heretofore described. Now upon `the return movementthe members F and G, bending at their hinged ends, move freely withoutaffecting the shaft E until the end of bell-crank lever L, coming incontact with the catch-arm I, has moved said arm until it strikes theterminal shoulder 71,' of collar II, whereupon the shaft E is rocked.back through the latter half of the movement of bar D and the lock-bar.I slips to its engagement with the socket K. In the movement of the barD it will be seen that the rocking of shaft E is only through aquarter-revolution, which is sufficient to raise the member F to avertical or a little past a vertical position, and after theperpendicular is passed the bar D drops by gravity the rest Of the way.

Pivoted upon the pivot-pinf of thc members F and G is a contact-arm M,with which one endV of a jointed lever/m is connected, the other end ofsaid lever being connected with the crank-arm 7L of the collar Il. Thislever is jointed at itsV middle by a shouldered hinge fm', which allowsfor the bending of the lever in one direction, but limits it in another.Upon the side of the member G is a contact lug or piece g2. These partsapply to the closing of the gate by rocking shaft E in an oppositedirection, as will be more fully described. By the opening movement ofthe bar the contact-lug q2 is thrown around into contact with the arm )Ion thepin f. At this time the jointed lever mis straight and rigid.

Now upon turning the shaft E away from the gate its effect will be,through the rigid lever m an d the contact-arm M, to bear against thecontact-lug g2, whereby the member G is swung around on its hinge to anda little past the vertical, thereby raising the bar D, and when past theperpendicular the bar drops down to its normal position with the twomembers G and F parallel and upon one another. The reason for thejointin lever m is to allow it to bend on the other movement of the shaftwhen its operation is not called for, and this bending is insured by theengagement of a small shoulder m2 on the lower end of the lever, whichis adapted to come in contact with a piece m3, fixed below.

The following detailed description of the operation of these parts willat this point be of advantage. For the time being let it be supposedthat a crank is connected with each of the shafts E, said crank beinglocated in the roadway in the path of one of the wheels of the vehicleand held normally in a vertical position by means of the springs e, thisposition being limited by the normal contact of the catch-arm I with thebell-cragk lever L. In this position the parts on one side occupy thesame relation to each other as the parts on the other side-that is tosay, the gate is closed, the bar D is down, the upper member G of thetoggle-lever lies parallel with and alongside of the end of the bar, thelower member F of said lever extends parallel with and directly underthe upper member, the jointed lever 'nt is straight, the lock-bar .I isprojected to its engagement with the socket K, the catch-arm I is incontact with the bell-crank lever L, and the contact-pin d* of bar Drests upon the jointed ears of the members of the toggle-lever. Now letus su ppose a vehicle to approach the IOC gate from the left-hand sideand its wheel to run down the crank on said side. As the crank turns,the shaft E is turned toward the gate. The shouldered collar II of shaftE now picks up catch-arm I, and said arm, coming in contact withbell-crank lever L, causes said lever to withdraw thelocking-bar J fromsocket K. Thus the parts which had heretofore been locked by the bar J(and the gate therefore prevented from being moved by any other means)are released. The shouldered head of the lock-bar J, now coming incontact with the body of the lower member F of the toggle-lever, formsthe connection, as heretofore described, of said member with shaft E,and continued movement of said shaft therefore operates to swing thelower member F upwardly through a vertical arc of a circle. Thismovement throughthe contact of the joint of said lever with pin d* ofbar D, raises and causes said bar to accompany the lower member of thetoggle-lever, the upper member of the toggle-lever remaining in itsposition parallel with and alongside of the bar D, as all the raising ofsaid bar at this end is done by the lower member. This movementcontinues until the crank has been depressed to the ground, at whichtime the shaft E has performed a quarter-revolution and the lower memberF of the togglelever has reached a position a little beyond theperpendicular. Now turning to the mechanism to the right, or on theother side of the gate, we find that the following movement has takenplace. As the bar D rises the end on the right simply turns about thejoint of the toggle-lever, lcarrying the upper member G with it, so thatsaid upper member turns through an arc in avertical plane, coming to aperpendicular position as the lower member F on the first or left-handside reaches the perpendicular. On the right-hand side the lower memberF remains in its normal position, and also all the parts connected withit. New the bar D, being in its highest position and having movedthrough half of its course, has lifted and partially turned the gateopen, away from the approaching vehicle. This movement carries themember F on one side and the member G on the other, a little past thevertical, so that as the wheel of the vehicle leaves the depressedcrank, which it has run over. the bar by its own weight accomplishes theother half of its movement, falling by gravity down to its lowerposition, whereby the gate is fully opened. Now turning to the'parts onthe left we have them in this position: The upper member G of thetoggle-lever is still parallel and alongside of the end of the bar D.The lower member F, having passed through approximately a semicircle,lies extended from and substantially in the line of the upper member.The jointed lever m is bent at its joint, as is necessary, on account ofthe-now-contracted. distance between its ends, this bending having beeninsured by the contact of its end with the fixed piece m3. Thebell-crank lever L has left the catch-arm I, which arm occupies asubstantially vertical position, and the crank which the wheel ran overlies upon the ground. Now turning to the right-hand side we find thisposition of the parts: The lower member F and all its adjacent andconnected parts, including the shaft E, remain inthe first position,having been unaffected by the movement of the bar D, which takes-placewith the assistance of the upper member G only, and the crank which wehave supposed to be attached to shaft E remains in an upright position.The upper member G is extended from and lies substantially in line withthe lower member F, and the contact-lug g2, attached to said uppermember, has by its movement been carried around into the path of andlies directly against the contact-arm M. Now the vehicle passes throughthe gate, and its wheel runs down the crank on the right-hand side. Thisturns the shaft E through a quarter-turn in a direction away from thegate, and its effect is as follows: The jointed lever m, now rigid, isforced outwardly'by its connection with the crank-arm h of the collar[-I on the shaft, and thereby forces the contact-arm M against the lugor piece g2 on the upper member G. This forces said upper memberupwardly and backwardly until the crank having reached a recumbentposition in the roadway the upper member is raised to a position alittle past the vertical, and as soon as the wheel leaves the crank thespring c returns theshaft and connected parts back again to the normalposition, so that the crank immediately rises.

Now at the other side of the gate-namely, on the left-the upwardmovementof the bar takes place about the joint of the toggle-lever andabout the journal of the inner end of the lower member on the shaft E,so that said lower member is raised to and a little bit past thevertical, and about this time the bell-crank lever, coming back to itscontact with the catch-arm I and said catch-arm coming to its engagementwith the shoulder of the collar H, is ready to return the shaft andraise the crank in the roadway. yThis rising and backward movement ofthe bar D has returned the gate partially towarda closed position. Nowthe bar drops the rest of the way by gravity, as before described, sothat all the parts return to the position first described and are lockedby the bars .I engaging the sockets K, the gate being now closed andbothcranks raised in the roadway. Now if a vehicle should approach in anopposite direction the reverse of this operation lakes place. A weight Iis suspended by a cord w, which, after passing over suitable pulleys, isconnected with the gate and serves to assist in raising it. In thisoperation I have supposed that the cranks which the wheels are to rundown are connected directly with the shafts E, and while thisarrangement may be had I prefer the following arrangement: Shafts E IOOIIO

are set close to thc gate on each side, so that the bar D need not be avery long one. The cranks, which are designated by il', are journaled inthe roadway at any proper distance to allow for their operation beforereaching the gate. The crank-shafts have chain-pulleys n, from whichextend endless chains fn. to pulleys e on shafts E, whereby the movementof the cranks is transmitted to the shafts. I prefer to run theseendless chains through channels or tubes a2, placed under ground, saidchains being properly directed into the channels or tubes by means ofsuitable guidepulleys. i

In order to house the parts connected with the shaft E and the ends ofthe lifting-bar, I have an angular plate or casing O, carried by theends of the bar and adapted when the bar is down to fit over the severallevers and connected parts.

On the gate-postBis secured the catch. It

consists of o Josine lates l), each )ivoted at j) to the gate-post, andeach slotted over a iixed pin p at its innerend. 'lhe outer end of theplates is heavier within the inner end, so that they drop by gravity toa position in which theirtops are outwardly and oppositely inclined,being held in this position by the pins p.

Between the adjacent ends of the two plates a space is left to receivethe gate-latch. The gale-latch Q consists of a vertically-movable barmounted in guides on the end of the gate and held down by a spring q.Wien this latch meets the outer depressed end of one of thecatch-plates, it rises thereon until having passed the pivot-al eenterofsaid plate the latter rocks, and the latch passes over it to its innerend, where it drops between the two plates, the plate over which itpassed returning by gravity to its normal position, and thus the latchis confined between the two plates.

Now to operate the gate by hand I have the following mechanism: Pivotedin the top rail of the gate is a lever R., the upper end of which isadapted to engage and to be Iixed by a rack fr. This lever is connectedby a link r with the end of a cord r2, which passes over a guide-pulleyin the end of the gate, and is connected at its lowcr end with themovable gate-latch Q. Now by operating this lever the gate-latch can beraised from the catch, thus freeing the gate; but in order to allow thegate to turn without affecting the mechanism in the roadway` heretoforedescribed,l have a second hinge for said gate. Extending outwardly fromthe gate-standard c is an arm S, to the end of which the gate is pivotedat s. The bottom rail of the gate is pivoted at s' to the braces d ofthe arms d, so that the gate is thus provided with a second hingecenter,and can turn about this second hinge without affecting the standard c.

Now to hold the gate in an open position when turned upon this secondhinge I have the following mechanism: The end of arm S is formed withnotches s2. Mounted in the top. of the gate is a sliding pawl-bar T, theouter end of which is adapted to engage the notches. The inner end ofthe pawl-bar has a perforated lug t, through which passes the end of alink-rod t', the other end of which is connected with the lever R. Theend of the link-rod which passes through the perforated lugt is providedwith the nut f2, so as to limit the play of thelink-rod in said lug, anda spring t5 encircles the link-rod between the lug and a shoulder on thelink-rod so as to affect the pawl-bar and keep it to its engagement.Now, when the lever R is moved to raise the latch its movement is notinterfered with,for llink-rod t simply plays freely through the lug t.Then the gate is swung open, and the pawlbar, influenced by the springt3, seeks engagement with the notches s2 in arm S, thereby holding` thegate open. To release it, the lever R is turned in the otherdirection,whereby the link-rod t is moved, and its nut t2, coming incontact with lug withdraws the pawl-bar T, and the gate can be closed.In order to make the weight lV assist in closing the gate when operatedby hand, I run the' inner end of cord w through standard c, and, guidingit by small pulleys on theinnerside of the standard, connect it with thegate-end proper. As the gate swings open on its second hinge this endmoves away from the standard, and thus raises the weight.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

l. In combination with the gate having the axially and verticallymovable standard c, the swinging bar D in the roadway, and arms fixed tothe standard connecting said bar with the standard of the gate, wherebythe standard is raised and turned axially to free the gate and swing it,substantially as herein described.

2. In combination with the gate having the axially and verticallymovable standard with a hollow lower end and the fixed standard c', overwhich the lower end of the gate-standard is iitted and moves, theswinging har D and arms secured to the gate-standard and connecting thesame with the bar, substantially as herein described.

In combination with the gate having the vertically and axially movablestandard, the swinging bar D, having the fixed pins or studs d2, and thearms d, connected with the gatestandard and freely slotted over the pinsor studs of the bar, substantially as herein described.

4l. In combination with the gate having the vertically and axiallymovable standard, the swinging bar D, and connections between the barand the standard, the means for operating the bar D, consisting of therock-shafts E and the toggle-levers, one member of which is connectedwith the rock-shaft and the other with the bar, substantially as hereindescribed.

IOC

5. In combination with the gate having the vertically and axiallymovable standard, the swinging bar D, and connections between the barand standard, the means for operating the bar D, consisting of therock-shafts, the toggle-levers, one member of which is pivoted upon theshafts and the other to the bar, the contact-pins CZ'l of the bar underwhich the joints of the toggle-levers work, and a connection between theshafts and the lower members of the toggle-levers, whereby the latterare operated by the turning of the former, substantially as hereindescribed.

6. In combination with the gate having the vertically and axiallymovable standard, the swinging bar D, and connections between the barand the standard, the means for operating the bar D, consisting of therock-'shafts E, the members F and Got the toggle-levers, pivoted to theshafts and to the swinging bar, respectively, the contact-pins of thebar operated by the toggle-levers, the spring-controlled locking-bars J,engaging fixed sockets and having shouldered heads for limiting theirretraction, the bell-crank levers connected with the locking-bars, andthe catcha-rms I on the shafts, adapted `to engage the bell-cranklevers, substantially as herein described.

7. In combination with the gate having the vertically and axiallymovable standard, the swinging barD, and connections between the bar andstandard, the means for operating the bar D, consisting of therock-shafts E, the

pivoted toggle-levers connecting the shafts with the bar, thecontact-lugs g2 on the upper members of the toggle-levers, thecontactarms M, adapted to come in Contact with said lugs, and thejointed levers my, connecting the contacbarrns with the rock-shafts,substantially as herein described.

S. ln combination with the gate having the vertically and axiallymovable standard, the swin ging bar D, and connections between the barand standard, the means for operating the bar D,consisting of thespring-controlled rock-shafts E, the toggle-levers, the lower members ofwhichl are pivoted on the rockshafts, and the upper members are pivotedto the ends of thebar, the contact-pins d4 on the bar operated by thejoint of the togglelevers, the spring-controlled slidil'iglock-bars J,carried by the lower members of the togglelevers and adapted to engagefixed sockets,

said lock-bars having shouldered heads for I 9. In a gate, and incombination with the swinging baiI D for operating it, the rockshafts E,and connections therefrom to the bar, whereby the latter is operated,the swinging cranks in the roadway, and the endless chains and pulleysby which the movement of the cranks is transmitted to the rock-shafts,substantially as herein described.

lO. The swinging gate, in combination with the arm S, having a notchedend, the springcontrolled pawl-bar carried by the gate and adapted toengage the notched end of the arm for holding the gate open, and thelever and connections for releasing the pawl-bar, substantially asherein described.

l1. In combination with the swinging gate, the spring-controlled latch,and the lever and connections for operating the latch, the fixed arm S,with a notched head, thel spring-controlled paWl-bar carrie-d by thegate for engaging said head, and the link connecting the lever with thepawl-bar, substantially as herein described.

12. The combination of the gate having a vertically and axially movablestandard at one end, with which it rises and turns, the swinging bar Dfor raising and turning the standard, the arm S,projecting from thestandard to which the gate is hinged, and a pivot for said gate below,whereby said gate can turn independently of the standard, substantiallyas herein described.

In witness whereof I have hereunto setmy hand.

JOHN F. A. MILLERICK.

Witnesses:

S. H. NoURsE, 1I. C. LEE.

